Okay, first of all, just stop what you are doing, just go sit down and binge the whole thing tonight okay!?! This is one of the best underrated dramas of 2019! I said what I said. Okay first of all I LOVE PARK SHIN HYE AND HYUN BIN! They have super great chemistry! This drama isn't a romance drama but it provides it for sure. This kdrama is SO unique. I can not stress that enough. The writing and production and visuals is EVERYTHING. It's thrilling, full of action and packed with scifi qualities. You will be rooting for Hee Joo and Jin woo for sure. This is a MUST WATCH. Okay? I also forgot to mention that this kdrama gives you ALL THE FEELS, at times you will be scared too (you'll know why later, plus next time it suddenly starts thundering and raining you will freak) Go log off and watch it now.